If the left and right wheels bounce up and down at the same time, that is, when the body only moves vertically and the deformation of the suspensions on both sides is equal, the stabilizer bar rotates freely in the bushing, and the stabilizer bar does not work.
When the suspension on both sides deforms unequal and the body tilts laterally to the road, one side of the frame moves closer to the spring support, the end of the stabilizer bar moves upward relative to the frame, and the other side of the frame moves away from the spring For the support, the end of the corresponding stabilizer bar moves down relative to the frame. However, when the body and the frame are tilted, the middle of the stabilizer bar does not move relative to the frame. In this way, when the body is tilted, the longitudinal parts on both sides of the stabilizer bar deflect in different directions, so the stabilizer bar is twisted and the side arms are bent, which plays a role in increasing the angular rigidity of the suspension.
The torsional internal moment generated by the elastic stabilizer bar hinders the deformation of the suspension spring, thereby reducing the lateral tilt and lateral angular vibration of the vehicle body. When the torsion bar arms at both ends bounce in the same direction, the stabilizer bar does not work. When the left and right wheels bounce in the opposite direction, the middle part of the stabilizer bar is twisted.
